<template>
  <div class="home">
    <!--1.  顶部区域布局---------- -->
    <div class="header">
      <div class="item">
        总销售额
        <div class='num'>{{ homeInfo.saleTotal }}</div>
        <div class="bottom">今日销售额:{{ homeInfo.sale }}</div>
      </div>
      <div class="item">总访问量
        <div class='num'>{{ homeInfo.viewsTotal }}</div>
        <div class="bottom">今日访问量:{{ homeInfo.views }}</div>
      </div>
      <div class="item">总收藏量
        <div class='num'>{{ homeInfo.collectTotal }}</div>
        <div class="bottom">今日销售额:{{ homeInfo.collect }}</div>
      </div>
      <div class="item">总支付量
        <div class='num'>{{ homeInfo.payTotal }}</div>
        <div class="bottom">今日支付量:{{ homeInfo.pay }}</div>
      </div>
    </div>

    <!--2. 访问数据统计 ----------------->
    <div class="content">
      <div class="time-info" id='box13'>
        <div class="title">月销售额</div>
        <div id="charts" style="width: 100%; height: 300px"></div>
      </div>
      <div class="area" id="box1">
        <div class="title">产品销售比例</div>
        <div id="pie" style="width: 100%; height: 300px"></div>
      </div>
    </div>


    <!-- 3.  -->
    <!-- 最新内容 -->
    <div class="home-footer">
      <el-card class="box-card">
        <div slot="header" class="clearfix">
          <span>今日订单</span>
        </div>
        <div class="text item">
          <el-row>
            <el-col :span="8">
              <div class="title">今日订单数</div>
              <div>2000</div>
            </el-col>
            <el-col :span="8">
              <div class="title">汇总确认订单</div>
              <div>20000</div>
            </el-col>
            <el-col :span="8">
              <div class="title">今日金额</div>
              <div>20000</div>
            </el-col>
          </el-row>
        </div>
      </el-card>
      <el-card class="box-card">
        <div slot="header" class="clearfix">
          <span>本月订单</span>
        </div>
        <div class="text item">
          <el-row>
            <el-col :span="8">
              <div class="title">本月订单数</div>
              <div>20000</div>
            </el-col>
            <el-col :span="8">
              <div class="title">汇总确认订单</div>
              <div>20000</div>
            </el-col>
            <el-col :span="8">
              <div class="title">累计金额</div>
              <div>20000</div>
            </el-col>
          </el-row>
        </div>
      </el-card>
      <el-card class="box-card">
        <div slot="header" class="clearfix">
          <span>快捷入口</span>
        </div>
        <div class="text item">
          <el-button type="primary">产品管理</el-button>
          <el-button>消息管理</el-button>
          <el-button>内容管理</el-button>
        </div>
      </el-card>
    </div>

  </div>
</template>

<script>
import api from '@/api'
import { getCurrentInstance, onMounted, ref } from 'vue'
import echarts from '@/Plugin/echarts'
export default {
  setup() {
    //定义统计数据变量
    let homeInfo = ref({})

    //获取数据
    const instance = getCurrentInstance();
    const echarts = instance.appContext.config.globalProperties.$echarts


    //请求数据
    api.getHomeCount()
      .then(res => {
        // console.log('首页统计的数据', res.data.data.list)
        // Object.assign(homeInfo, res.data.data.list)
        homeInfo.value = res.data.data.list
      })

    //获取图表数据
    api.getHomeFormat()
      .then(res => {
        // console.log(res.data)
        let arr = res.data.result.data.sale_money
        //声明变理存储X轴 y轴数据
        let xData = [], yData = [], yBarData = [], pipeData = []
        arr.forEach(
          ele => {
            xData.push(ele.name)
            yData.push(ele.total_amount)
            yBarData.push(ele.num)

            //获取对象结构存储饼图数据
            let obj = {}
            obj.name = ele.name
            obj.value = ele.total_amount
            pipeData.push(obj)
          })

          bar(xData,yData,yBarData)
          pie(pipeData)

      })



    //绘制柱状图
    const bar = (xData,yData,yBarData) => {
      var myChart = echarts.init(document.getElementById("charts"))
      // 指定图表的配置项和数据
      var option = {
        title: {
        },
        tooltip: {},
        xAxis: {
          data: xData
        },
        yAxis: {},
        series: [
          {
            name: '销售额',
            type: 'line',
            data: yData,
            smooth: true
          },
          {
            name: '销售量',
            type: 'bar',
            data: yBarData
          }
        ]
      }
      // 使用刚指定的配置项和数据显示图表。
      myChart.setOption(option);
    }

    //绘制饼图
    const pie = (data) => {
      var chartDom = document.getElementById('pie');
      var myChart = echarts.init(chartDom);
      var option;

      option = {
        title: {
          text: '',
          subtext: 'Fake Data',
          left: 'center'
        },
        tooltip: {
          trigger: 'item'
        },
        legend: {
          orient: 'vertical',
          left: 'left'
        },
        series: [
          {
            name: 'Access From',
            type: 'pie',
            radius: '50%',
            data,
            emphasis: {
              itemStyle: {
                shadowBlur: 10,
                shadowOffsetX: 0,
                shadowColor: 'rgba(0, 0, 0, 0.5)'
              }
            }
          }
        ]
      };

      option && myChart.setOption(option);
    }

    return {
      homeInfo
    }

  }
}
</script>

<style lang="less" scoped>
// .home {
//   margin: 10px;
// }

.header {
  display: flex;
  padding-right: 30px;

  .item {
    flex: 1;
    height: 100px;
    padding: 10px;
    background: #fff;
    border-radius: 10px;
    margin-left: 20px;
    margin-right: 20px;
    font-weight: bold;
    color: #fff;
    // text-align: center;
    position: relative;

    .num {
      font-size: 22px;
      margin: 10px;
      color: #fff;
    }

    .bottom {
      position: absolute;
      border-top: 1px solid rgb(246, 245, 245);
      padding: 10px 20px;
      bottom: 0;
      right: 0;
      left: 0;
      color: #fff;
      font-weight: normal;
    }
  }

  .item:nth-child(1) {
    background-image: linear-gradient(#df887d, #88554d);
  }

  .item:nth-child(2) {
    background-image: linear-gradient(#409eff, #2e556e);
  }

  .item:nth-child(3) {
    background-image: linear-gradient(#b54fa8, #713c7a);
  }

  .item:nth-child(4) {
    background-image: linear-gradient(#1cd2f1, #39717a);
  }
}

// 图表

.content {
  margin: 20px;
  display: flex;
  height: 320px;

  .time-info {
    flex: 2;
    background: #fff;
    margin-right: 20px;
    padding: 10px;
  }

  .area {
    flex: 1;
    background: #fff;
    padding: 10px;
  }
}

//内容

.home-footer {
  display: flex;
  padding-left: 20px;
  margin-bottom: 20px;

  .clearfix {
    margin-bottom: 20px;
  }

  .box-card {
    flex: 1;
    margin-right: 30px;

    span {
      font-weight: 600;
    }
  }

  .item {
    text-align: center;
    font-size: 24px;
    color: #333;

    .el-col {
      border-right: 1px solid #eee;

    }

    .el-col:last-child {
      border-right: none;
    }

    .title {
      margin-bottom: 10px;
      font-size: 14px;
    }
  }
}
</style>